Still loads of fun, and it will make you sweat. I downloaded a bunch of my own tunes (around 700 or so), and I can get them close to matching the swings. Probably i could get them to match, but close is good enough for me. I also have a few workout songs at 130 BPM (disco - don't laugh), and they match perfectly, but even the non-perfect matches are enjoyable. Try doing some of these workouts to the classics like Bizet or Shostakovich.I like the different modifications you can make, too (more squats, sidesteps, etc.). As far as the 'energy flow' and the hammer and shields and whatnot, nice to have but I don't use them. I'm not doing this for points, I'm doing it for the workout. So, if you want a good, energetic workout, that's a bunch of fun and doesn't come with a subscription, this is it. It's a 5 star app for sure.